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Transaction watcher and notifier (#16363)
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Signed-off-by: Harshit Gangal <[email protected]>
Signed-off-by: Andres Taylor <[email protected]>
Co-authored-by: Andres Taylor <[email protected]>
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harshit-gangal and systay authored Jul 17, 2024
1 parent f73f624 commit c9c0aa5
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Showing 24 changed files with 503 additions and 389 deletions.
1 change: 0 additions & 1 deletion go/flags/endtoend/vtcombo.txt
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Expand Up @@ -389,7 +389,6 @@ Flags:
--transaction_mode string SINGLE: disallow multi-db transactions, MULTI: allow multi-db transactions with best effort commit, TWOPC: allow multi-db transactions with 2pc commit (default "MULTI")
--truncate-error-len int truncate errors sent to client if they are longer than this value (0 means do not truncate)
--twopc_abandon_age float time in seconds. Any unresolved transaction older than this time will be sent to the coordinator to be resolved.
--twopc_coordinator_address string address of the (VTGate) process(es) that will be used to notify of abandoned transactions.
--twopc_enable if the flag is on, 2pc is enabled. Other 2pc flags must be supplied.
--tx-throttler-config string Synonym to -tx_throttler_config (default "target_replication_lag_sec:2 max_replication_lag_sec:10 initial_rate:100 max_increase:1 emergency_decrease:0.5 min_duration_between_increases_sec:40 max_duration_between_increases_sec:62 min_duration_between_decreases_sec:20 spread_backlog_across_sec:20 age_bad_rate_after_sec:180 bad_rate_increase:0.1 max_rate_approach_threshold:0.9")
--tx-throttler-default-priority int Default priority assigned to queries that lack priority information (default 100)
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2 changes: 0 additions & 2 deletions go/flags/endtoend/vttablet.txt
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Expand Up @@ -387,7 +387,6 @@ Flags:
--transaction_limit_by_username Include VTGateCallerID.username when considering who the user is for the purpose of transaction limit. (default true)
--transaction_limit_per_user float Maximum number of transactions a single user is allowed to use at any time, represented as fraction of -transaction_cap. (default 0.4)
--twopc_abandon_age float time in seconds. Any unresolved transaction older than this time will be sent to the coordinator to be resolved.
--twopc_coordinator_address string address of the (VTGate) process(es) that will be used to notify of abandoned transactions.
--twopc_enable if the flag is on, 2pc is enabled. Other 2pc flags must be supplied.
--tx-throttler-config string Synonym to -tx_throttler_config (default "target_replication_lag_sec:2 max_replication_lag_sec:10 initial_rate:100 max_increase:1 emergency_decrease:0.5 min_duration_between_increases_sec:40 max_duration_between_increases_sec:62 min_duration_between_decreases_sec:20 spread_backlog_across_sec:20 age_bad_rate_after_sec:180 bad_rate_increase:0.1 max_rate_approach_threshold:0.9")
--tx-throttler-default-priority int Default priority assigned to queries that lack priority information (default 100)
Expand Down Expand Up @@ -417,7 +416,6 @@ Flags:
--vstream-binlog-rotation-threshold int Byte size at which a VStreamer will attempt to rotate the source's open binary log before starting a GTID snapshot based stream (e.g. a ResultStreamer or RowStreamer) (default 67108864)
--vstream_dynamic_packet_size Enable dynamic packet sizing for VReplication. This will adjust the packet size during replication to improve performance. (default true)
--vstream_packet_size int Suggested packet size for VReplication streamer. This is used only as a recommendation. The actual packet size may be more or less than this amount. (default 250000)
--vtgate_protocol string how to talk to vtgate (default "grpc")
--vttablet_skip_buildinfo_tags string comma-separated list of buildinfo tags to skip from merging with --init_tags. each tag is either an exact match or a regular expression of the form '/regexp/'. (default "/.*/")
--wait_for_backup_interval duration (init restore parameter) if this is greater than 0, instead of starting up empty when no backups are found, keep checking at this interval for a backup to appear
--watch_replication_stream When enabled, vttablet will stream the MySQL replication stream from the local server, and use it to update schema when it sees a DDL.
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1 change: 0 additions & 1 deletion go/test/endtoend/vtgate/transaction/twopc/main_test.go
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Expand Up @@ -78,7 +78,6 @@ func TestMain(m *testing.M) {
)
clusterInstance.VtTabletExtraArgs = append(clusterInstance.VtTabletExtraArgs,
"--twopc_enable",
"--twopc_coordinator_address", fmt.Sprintf("localhost:%d", clusterInstance.VtgateGrpcPort),
"--twopc_abandon_age", "3600",
"--queryserver-config-transaction-cap", "3",
)
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1 change: 0 additions & 1 deletion go/test/endtoend/vtgate/transaction/tx_test.go
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Expand Up @@ -59,7 +59,6 @@ func TestMain(m *testing.M) {
// Set extra tablet args for twopc
clusterInstance.VtTabletExtraArgs = []string{
"--twopc_enable",
"--twopc_coordinator_address", fmt.Sprintf("localhost:%d", clusterInstance.VtgateGrpcPort),
"--twopc_abandon_age", "3600",
}

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